module Path:sig..end
val exists : Assemblage.Cmd.path -> bool Assemblage.Cmd.resultexists path is true iff path exists.val move : ?force:bool ->
Assemblage.Cmd.path -> Assemblage.Cmd.path -> unit Assemblage.Cmd.resultmove ~force src dst moves path src to dst. If force is
false (default) the operation fails if dst exists.